Identifying Check the cause Causation of the disaster Catastrophe proved Coming_to_believe difficult , as the accident Catastrophe had occurred Presence before the age of cockpit voice recorders .

These include increased battery life on underwater locator beacons , lengthening Expansion of recording Recording times on flight data recorders and cockpit voice recorders , and new standards for aircraft position reporting Reporting over open Openness ocean .

These include increased battery life on underwater locator beacons , lengthening Expansion of recording Recording times on flight data recorders and cockpit voice recorders , and new standards for aircraft position reporting Reporting over open Openness ocean .

The Soviets found Know the wreckage under the sea on September 15 , and found Know the flight recorders in October , but this information was kept secret until 1993 .

the soviet armed forces suppressed Hindering evidence sought by the international civil aviation organization ( icao ) investigation , such as the flight recorders , which were released ten years later , after the dissolution of the soviet union .

Cockpit voice and flight data recorders revealed Reveal_secret the presence Presence of the relief pilot 's 12-year-old daughter and 16-year-old son on the flight deck .

Recommendations from the inquiry Scrutiny led to Causation the mandatory installation of cockpit voice recorders in British-registered airliners .

In the aftermath Causation of the crash , there were allegations that investigators had tampered Hindering with evidence , specifically the aircraft 's flight recorders ( `` black boxes '' ) .